it took my wife about 4 weeks for her ILR visa to be sent. its worth pointing out to anyone applying for the ILR visa to get the damn life in the uk test out of the way early.
it took her 3 atempts at the life in the uk test ,even though she studied very hard, and finaly passed on the 21st of febuary and she had been here for 2 years on march the 1st so we was getting worried.